Research progress in micro-mixing characteristic of liquid-liquid jet mixers

doi:10.16085/j.issn.1000-6613.2018-0518

Abstract

Abstract: Liquid-liquid jet mixers have good micro-mixing characteristic which well match the liquid-liquid fast reaction system. It's significant to choose proper methods and quantitative indexes to study the micro-mixing characteristic of various jet mixers. In this work, common methods (chemical probe technique, LIF technique and CFD) to study the micro-mixing characteristic in liquid-liquid mixing system were compared, including their merits and demerits, the range of application, the selection principles and application key points. Meanwhile, the related quantitative indexes were also summarized. Then the liquid-liquid jet mixers were systematically classified. Based on this, the key factors that influence their micro-mixing characteristic and research progress in various jet mixers were further analyzed. The latter contained the application progress of aforementioned three methods on study micro-mixing mechanism, micro-mixing characteristic time, micro-mixing intensification and structure optimization. Finally, the limits of present research on the micro-mixing characteristic of tank jet mixers and tubular jet mixers were concluded and the trend of further research was also noted.

Key words: liquid-liquid jet mixers, micro-mixing, chemical probe technique, LIF technique, CFD

摘要： 液-液喷射混合装置具有优异的微观混合特性，特别适用于液-液快反应体系。在研究不同液-液喷射混合装置的微观混合特性时，选取合适的研究方法和定量指标非常关键。本文对比分析了液-液喷射混合装置中常用的微观混合特性研究方法（化学探针法、激光诱导荧光技术和计算流体力学方法），包括其优缺点、适用范围、选用原则和应用要点，并总结了表征微观混合特性的定量指标。其次，对液-液喷射混合装置进行了系统性的分类，分别介绍了不同液-液喷射混合装置中微观混合特性的影响因素和研究进展，后者主要包括3种研究方法在研究微观混合机理、微观混合特性时间、微观混合过程强化和装置结构优化等方面的进展。最后总结了罐中喷射混合装置和管状喷射混合装置微观混合特性研究存在的不足和后续研究方向。

关键词: 液-液喷射混合装置, 微观混合, 化学探针法, 激光诱导荧光技术, 计算流体力学方法

CLC Number:

TQ027

HUANG Zhengliang, NIE Yuanqing, YANG Yao, SUN Jingyuan, WANG Jingdai, JIANG Binbo, YANG Yongrong. Research progress in micro-mixing characteristic of liquid-liquid jet mixers[J]. Chemical Industry and Engineering Progress, 2018, 37(S1): 1-11.

黄正梁, 聂元清, 杨遥, 孙婧元, 王靖岱, 蒋斌波, 阳永荣. 液-液喷射混合装置微观混合特性的研究进展[J]. 化工进展, 2018, 37(S1): 1-11.

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